Association Between Echocardiographic Features, Troponin Levels, and Survival Time in Hospitalized COVID-19 Patients with Cardiovascular Events

Introduction This study aims to explore the predictive roles of echocardiographic parameters and biomarkers in determining outcomes among hospitalized COVID-19 patients experiencing cardiovascular events. Methods A retrospective cohort study was conducted involving 49 COVID-19 patients who encountered cardiovascular events during hospitalization and underwent echocardiography. Our findings revealed notable associations between echocardiographic parameters and survival time. Results: A decrease in left ventricular ejection fraction (LVEF) of 10% was linked to a 20% reduction in survival time (TR: 0.80, 95% CI: 0.67 – 0.96, p =.017). Similarly, an increase in left ventricular (LV) volume by 10mL was associated with a 9% decrease in survival time (TR: 0.91, 95% CI: 0.84 – 0.98, p =.011). Moreover, an increase in left atrial (LA) volume by 10mL corresponded to an 8% decrease in survival time (TR: 0.92, 95% CI: 0.86 – 0.99, p =.026). Additionally, each 1cm increase in right ventricular (RV) diameter was linked to a 22% reduction in survival time (TR: 0.78, 95% CI: 0.61 – 0.99, p =.043). Furthermore, a 10mL increase in right atrial (RA) volume was associated with a 12% decrease in survival time (TR: 0.88, 95% CI: 0.78 – 0.98, p =.017). Notably, a tenfold rise in troponin levels was linked to a 33% decrease in survival time (TR: 0.67, 95% CI: 0.48 – 0.93, p =.014). Conclusions Our study emphasizes the significant associations between various echocardiographic parameters and troponin levels with reduced survival time among COVID-19 patients experiencing cardiovascular events. These findings highlight the potential utility of echocardiography and troponin assessment in predicting outcomes and guiding management strategies in this patient population.